The commuter type rail business (commuter rail, light rail, trams, etc) is a big, incestuous family all across the U.S. They hire and cross hire employees, management, consultants, engineers and contractors from each other regularly. The Federal Government, through the FTA and the FRA (plus the DOT & EPA and sometimes the FAA) drive requirements and costs that are further exacerbated by Federal procurement regulations. All of this serves to create entities that float from one transit agency to the next. Definitely a good Ol boy network. Technical specs, standards, policies, and practices are plagiarized from one to the next. When I first started at DART, the standards and specs still had the names of other agencies embedded in the voluminous documents. Design consultants were paid huge sums to establish documents and they just copied from their last agency project. I shudder to think how many times tax payers paid for the same stuff and consultants just did a search-and-replace (poorly) to put the new agency name. It's not just DART, it's everywhere.
Further, all Agencies are driven heavily by what we now call DEI policies. Some more than others but all of them are extensive and it's exacerbated by minority participation requirements from Federal procurement regulations. DART has a very aggressive, racially active Board the dictates hiring, promotions, policies, and procurement. That has made DART a huge money laundering and grift operation favoring certain races, genders, and groups. Smooth, efficient, cost effective operation are terms that sneak into public narratives but are not to be found anywhere in practice.